NOVEL PYRROLINONE DERIVATIVE AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME

摘要

A compound represented by the general formula (I): (I) [wherein R1, R2, R 3, Z1, Z2, Ra, Rb, q, A, and n are as defined in the description], a pharmac eutically acceptable salt of the compound, or a solvate of either. These are useful as a P2X3 and/or P2X2/3 antagonist.